333,249 views
33 votes
33 votes
Find the slope of the tangent line to the graph of 2y³ + y - 2 = x at (1, 1).

User Entalpi
by
3.0k points

1 Answer

25 votes
25 votes

Answer:
(1)/(7)

Step-by-step explanation:

The slope tangent line can be calculated with the function's derivative:


2y^3+y-2=x\\\\6y^2(dy)/(dx) +(dy)/(dx) -0=1\\\\(6y^2+1)(dy)/(dx) =1\\\\(dy)/(dx)=(1)/(6y^2+1)

Now, plug the values of the coordinate in the derivative to find the slope:


(dy)/(dx)=(1)/(6y^2+1)=(1)/(6(1)^2+1) =(1)/(6+1) =(1)/(7)

User Snowbases
by
2.9k points